baber/WOPTO huggingface dataset:
Patent GB-268796-A (GB)
Title: Improvements in the conversion of hydrocarbons of high boiling point into compounds of lower boiling point
IPC: C10G11/04
Filed: 1927-03-31
Abstract: 268,796. I. G. Farbenindustrie Akt.- Ges. April 1, 1926, [Convention date]. Hydrocarbons, cracking.-In the conversion of hydrocarbons of high boiling point such as tars, mineral oils, bitumen, asphalt and their distillation products, into compounds of lower boiling point by heating in the presence of metals, the operation is performed in the absence of metals which lead to the deposition of carbon when exposed to high temperatures, and in the presence of a metallic catalyst or electrically resistant material not giving rise to the deposition of carbon. Metals such as cobalt, chromium. nickel, manganese, tungsten, molybdenum and their alloys give good yields of benzene and the like without appreciabie deposition of carbon and also exert a catalytic action. When an autoclave lined with cobalt is used, the apparatus is charged with cobalt granules or turnings, or other catalysts such as oxides or sulphides. The container may be heated internally by a heating coil of steel rich in chromium and nickel in which molten material or superheated steam is circulated. In one form of carrying out the process, for distilling benzine, a low temperature carbonisation tar is heated to 300‹ C. in an enamel-lined autoclave with the addition of cobalt-turnings, nickel granules &c. In another example, an autoclave lined with nickel-chromium alloy and containing catalysts such as molybdic acid or pyrites is charged with crude mineral oil and heated to 320‹ C. In another modification, brown coal is heated to 350-370‹ C. in an enamelled still provided with a fractionating column and containing an electrical heating coil of nickel wire. The fractions boiling above 270‹ C., consisting of Diesel engine oils and benzene, are continuously removed and replaced by tar, 50 per cent of the charge being converted per hour. In another example, anthracene oil is heated to 359-360‹ C. in an aluminium lined pan provided with a reflux condenser carrying an electrically heated wire of nickel-chromium-iron alloy, the fractions boiling below 250-270‹ C. being continuously withdrawn. In another example, crude mineral oil is heated in a chromium lined still fitted with an electric heater of chromium-nickel alloy. The still is placed in a heating bath kept at a sufficiently low temperature to prevent decomposition of the oil on the still walls while the heater is raised to a temperature sufficient to produce cracking. The more volatile portions of the vapour are separated by dephlegmation and the asphaltic residue is periodically withdrawn. Specifications 23460/11 and 249,155 are referred to.
Patent GB-1500938-A (GB)
Title: X-ray diffraction apparatus
IPC: G01N23/20
Filed: 1975-03-04
Abstract: 1500938 X-ray diffraction apparatus PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 4 March 1975 [7 March 1974] 8894/75 Heading H5R A specimen holder for X-ray diffraction apparatus comprises an operable housing 1 which can be closed by a lid 11 and a gas-tight seal 13, a removable specimen support 9 held in position by a pin 5 and a cylindrical beryllium window 18. The beryllium window can be made by bending and annealing a sheet of sintered beryllium grains.
Patent GB-1030906-A (GB)
Title: Improvements in or relating to resistors
IPC: H01C7/04
Filed: 1963-03-06
Abstract: 1,030,906. Temperature responsive resistors. ROBERT BOSCH G.m.b.H. March 6, 1963 [March 24, 1962], No. 8921/63. Heading H1K. A temperature-responsive resistor comprises a plurality of semi-conductor bars 12 connected in series and enclosed by a close-fitting thin metallic casing which is coated on the side adjacent the semi-conductor bars with an electrically-insulating layer. The semiconductor material is preferably lead selenide and the metal casing is preferably of anodized aluminium. The die-cast connections 13 between the bars and the connections to the terminals 14 are housed in enlarged recesses in the casings and are made of zinc. Bars with cross-sections other than square may be used.
Patent GB-641721-A (GB)
Title: Improvements in or relating to apparatus using a magnetisable recording medium in the form of a tape or wire
IPC: G11B15/44
Filed: 1947-04-02
Abstract: 641,721. Magnetic recording - apparatus. GENERAL ELECTRIC CO., Ltd., TAYLOR, L. A., WAGSTAFF, C. R., DEAN, P., and TURNER, H. C. April 2, 1947, No. 8973. [Class 40 (ii)] Tape or wire recording-apparatus has the take-up and delivery reels mounted coaxially one above the other, each tending to be driven in the same direction by friction clutches, and a further friction drive to draw the tape past the erasing, recording, and reproducing heads. The upper reel 5 is driven by a clutch-plate 13 secured to the motor-driven shaft 10, and the lower reel 6 is driven by a similar plate 12. The tape passes over guide-rollers 21 and drive roller 7 which co-operates with a pressure roller 8 to draw the tape off the upper reel against the tension applied by the counterrotating clutch 13, and allow the lower reel to take up the tape. Fluctuations in tape speed are reduced since variations in drive tension are compensated by variations in frictional resistance. During re-winding, the pressure roller 8 is lifted by a link 20, and the upper reel 5 is locked to shaft 10 by a pawl 14 actuated by a push-rod 19 and levers 17, both movements being effected by a cam 23. The tape is then drawn on to reel 5 against the tension of clutch 12.
Patent GB-232406-A (GB)
Title: Improvements connected with geysers
IPC: F24H1/12
Filed: 1924-04-10
Abstract: 232,406. George, Ltd., W. & J., and Hedley, T. J. April 10, 1924. Annular boilers.-A water-heater comprises a tubular jacket 7 with a plurality of baffle plates or vanes 8 within the upper part of the bore, a burner 9<b> supported by a mounting secured to the lower end of the jacket 7, a cowl or capping 10 having an aperture in one side for directing the outlet of hot gases, and brackets 14 for securing the heater.
Patent GB-702931-A (GB)
Title: Improvements in or relating to rotary machines comprising fluid compressing means
Inventor: BLACKMAN STUART BERTRAM
IPC: F02C7/18
Filed: 1951-04-18
Abstract: 702,931. Axial-flow compressors; gas turbine plant. BRISTOL AEROPLANE CO., Ltd. April 3, 1952 [April 18, 1951], No. 9109/51. Classes 110 (1) and 110 (3) In a compressor from which air is bled for auxiliary uses, the point or stage of the compressor from which the air is bled is varied to maintain the pressure of the bled-off air as the delivery pressure of the compressor falls. In the aircraft gas turbine plant shown in Fig. 1, a highpressure turbine 7 drives a high-pressure compressor 5 through a hollow shaft 6, and a low-pressure turbine 10 drives a low-pressure compressor 8 .through a shaft 9. Air bled from the compressors is used for pressurizing and ventilating the aircraft cabin and is supplied through a main pipe 43 and branch pipes 44 to bearings 12 ... 17 to cool the bearings and to prevent leakage of lubri. cant from the bearings into the working passages of the compressors. In the case of bearing 16, for example, air from the adjacent 'pipe 44 passes through :an annulus 31, Figs. 1 and 3, to a labyrinth seal 21 by way of chambers 30 and 25 and groove 22 and also by way of channel 32 and groove 33. Some of this air leaks along a part 21a of seal 21 and prevents leakage of oil in the reverse .direction and, after passing through the bearing 16, enters the oil drain pipe 20. The remainder leaks along a part 21b of the seal. The pressure of the air (when supplied by compressor 8) is less than that of the gases flowing through turbine 7, and to pre-  vent the gases from flowing back through the bearing 16, high-pressure air derived from the space 38 around the inside of the combustion chamber is supplied through a space 39 to a chamber 40. From chamber 40, part of the highpressure air flows over the surface of turbine rotor 18, cooling it, and joins the turbine gas stream. The remainder passes through a labyrinth seal 41 and mixes with the air leaking from seal part 21b, the mixture passing over a wall 42 and being discharged to atmosphere. Similar arrangements are provided for the other bearings. When the engine is starting, pipe 43 is connected by a valve 45 to the high-pressure compressor 5. As the pressure in pipe 43 builds up, it gradually closes the valve 45. When the low-pressure compressor 8 has speeded up sufficiently to match this pressure, a non-return valve 37 opens, and a further rise of pressure closes the valve 45 so that the supply to pipe 43 is wholly taken over by the compressor 8. Valve 45 comprises a balanced piston 51, Fig. 4, exposed at one end to the pressure on pipe 43 at 50 and at the other end to atmospheric pressure and the force of a coil spring 53, which is adjustable by means of a screw cap 54. The piston 51 carries a cylinddrical gate 47 which controls the connection between a chamber 46 which communicates with the bleed passage 48 of compressor 5, and a chamber 49 which communicates at 50 with pipe 43.
Patent GB-1533619-A (GB)
Title: Apparatus for filtering aerosols from gases
IPC: G21F9/00
Filed: 1976-03-08
Abstract: 1533619 Gas filter KERNFORSCHUNGSZENTRUM KARLSRUHE GmbH 8 March 1976 [7 March 1975] 09151/76 Heading BIT A downward flow sand bed filter for removing solids from gas comprises layers 1a-2c whose average grain sizes diminish in the direction of flow. Layer 3 comprises relatively coarse grains to act as a support layer and is itself supported by screen 7. In a filter designed for an approach flow velocity of 2 cm/sec, layers 1a to 2c have grain diameters of >2.9, 2.9, 1.52, >0.37 and 0.37 mms respectively, with corresponding layer thicknesses of 5-17: 10-20, 4.5-9, >16 and >3 cms. Weights of sand per unit area in each layer are also given. Layer 2c is omitted for an approach flow velocity of 2 to 5 cm/sec. The filter is intended to remove sodium oxide from gas released by malfunctioning of a sodium-cooled nuclear reactor.
Patent GB-1298999-A (GB)
Title: Improvements in or relating to apparatus for detecting the passage of movable small bodies
IPC: G06M1/10
Filed: 1970-02-26
Abstract: 1298999 Detecting the passage of small bodies ORBIT CONTROLS Ltd 19 April 1971 [26 Feb 1970] 9309/70 Heading G1A [Also in Division H3] An apparatus for detecting the passage of small bodies comprise a lamp with an elongated filament 1, two cylindrical lenses 244, and a detector 5 arranged as shown so that a flat beam of rectangular cross-section is produced. The small bodies, for example molded tablets, fall through a sensing region 3 causing rapid fluctuation in the output of the detector 5 which is preferably a photo-transistor. In an embodiment, Fig. 3 (not shown) the output of the photo-transistor is passed via an amplifier and is compared with a reference voltage and provides a feedback signal via a low pass filter to neutralize slow variations in the light level etc. The rapidly fluctuating signals from the amplifier due to the tablets are passed to a conventional counting device which may control the filling of the containers.
Patent GB-559915-A (GB)
Title: Improvements in and relating to fluid-flow meters
IPC: G01F1/28
Filed: 1942-07-06
Abstract: 559,915. Fluid-flow meters. STOKOE, C. L. July 6, 1942, Nos. 9322, 16175 and 16946. [Class 69 (i)] Relates to fluid-flow meters in which the action of the fluid against a pivoted flap, or an axially movable part, partially revolves a, spindle carrying an indicating pointer, and consists in the provision of lamps or coloured discs to indicate change in fluid-flow, means for adjusting the points at which such indications are given, and plates between which the indicating pointer is arranged, one or both plates being slotted to provide a path for the free end of the pointer, and the latter being laterally resilient. In Figs. 1 and 2, the meter body a contains a flap d carried by a spindle c pressed axially by a spring- loaded ball f, leakage along the spindle being prevented by a collar k and one or more resilient washers j. The spindle carries the resilient pointer v, w, and adjustable tappets p, q, which tappets act respectively through hinged electric contacts to light high or low-flow indicating lamps 1, 4, a normal flow indicating lamp 3 being then extinguished. In another form, the lamps 1, 3, 4, and contacts are replaced by coloured discs movable behind a preferably illuminated window. In both forms, the high-flow indicating means may be omitted. Specifications 447,809, 447,895 and 553,602 are referred to.
Patent GB-251955-A (GB)
Title: Improvement in a method of and apparatus for operating suction actuated devices in connection with the suction passage of an internal combustion engine
IPC: B60T13/24
Filed: 1926-04-08
Abstract: 251,955. Bragg, C. S., and Kliesrath, V. W. May 5. 1925, [Convention date]. Fluid-pressure.-In engines the, suction of which is utilized to operate a suction-actuated device, " stalling " of the engine and delay in re-starting due to weakening of the mixture by air exhausted from the device, are prevented by introducing fuel into the air admitted to the device to form a combustible mixture. The invention is described in its application to the brake-actuating mechanism of a motor vehicle but is not restricted thereto. The brake lever 72, Fig. 1, is connected by a link 73 with the hollow rod 5, Fig. 2, of a double, acting piston 3 in the cylinder 1 of the brake actuator. Valve mechanism 6 is located in the hub of the piston and is actuated by a tube 20 connected to a spring-loaded brake operating pedal 74. A flexible suction-transmitting pipe 26 is connected at one end to the tube 20 and at the other end to the intake manifold 61, Fig. 3, between the throttle valve 69 and the cylinders. The hollow piston rod 5 is connected by a pipe 80 to an auxiliary carburettor or with any supply of carburetted air, but. preferably to the main carburettor 66, Figs. 1 and 3, at a point between the fuel nozzle 66<e> and the throttle valve 69. The tube 20 communicates with a suction chamber 17 in the piston hub which also contains an inlet chamber 18 in communication with the aperture 5a and pipe 80. The tube 20 has a partition 21 separating the inlet passage to chamber 18 from the suction passage to chamber 17. Movement of the tube 20 to the left, Fig. 2, will admit mixture to the rear of the piston the other side of which will be subjected to suction, and movement of the tube in the opposite direction will reverse the connections.
Patent GB-587882-A (GB)
Title: Improvements relating to double ball and like thrust bearings
IPC: F16C41/02
Filed: 1943-06-10
Abstract: 587,882. Thrust bearings. POWER JETS, Ltd., and McLEOD, R. C. June 10, 1943, No. 9380. [Class 12 (i)] A ball or roller thrust bearing comprises two independent bearings, each transmitting its thrust load to a substantially rigid balancing member which transmits the total load to a housing member. The bearings 2, 4 have selfaligning outer races 2C, 4C seated in rings 8, 9, the latter being free and the former sliding in a ring 7 secured between shells 5, 6. Ring 9 has radial lugs 9A which engage partial or complete rings 8C acting on rods 8A which slide in holes in ring 8. These rods engage partial or complete rings 8B which transmit the thrust of rings 9 to rocking plates 5C seated in rings 5B within the housing shell 5, the plates 5C being also engaged by a rib or projections 8D on ring 8. In the opposite direction, shell 6 has rocking plates 11 engaged by a rib or projections 9D on ring 9 and by a hoop 10 located in a groove in ring 8, the hoop being cut away to pass lugs 9A. The inner races 2A, 4A have a distance piece 3 and are held by a sleeve 14 forming part of the shaft 1.
Patent GB-202352-A (GB)
Title: Improvements in or relating to window fasteners
IPC: E05F11/00
Filed: 1923-01-01
Abstract: 202,352. Stick, R. V. Jan. 1, 1923. Clamps, eccentric.-A pivoted arm c' on the lower sash a is pressed by a spring f above it so that teeth e<3> on its head e engage with the upper sash b. A lever h, pivoted at g and turned by means of a handle h', releases the arm and holds it in the inoperative position.
Patent GB-399111-A (GB)
Title: Presser-foot for sewing machines
IPC: D05B29/00
Filed: 1933-03-30
Abstract: 399,111. Sewing-machines. FAIRWEATHER, W. C., 65, Chancery Lane, London.-(Singer Manufacturing Co. ; Elizabeth, New Jersey, U.S.A.) March 30, 1933, No. 9565. [Class 112.] A presser foot for sewing-machines has three spring-depressed work-engaging tread-members supported for relative movements to permit passage of uneven work and compensating means for keeping the pressure distribution of the members even. The presser is carried by a sleeve 14 on spring depressed presser-bar. The sleeve 14 has a bracket 16 to provide a ledge 17. A flat spring plate having three spring tongues 19, 20, 21 is secured in the ledge 17, the middle tongue being slightly shorter than the others. A lug 23 is secured under the free end of the tongue 19. This lug is carried by a tread member 24 which is opposed to one of the feed dog members 11 entirely on one side of the line of seam formation. Adjacent to the member 24 is a shorter chaining-off member 25 with a spacing lug 26. This is secured to the tongue 20. This member is opposed to the dogs 12 behind the needle. The tongue 21 has a spacing lug 29 secured thereto carrying a tread member 30 opposed to the other feed dog 11. This tread member has a cut-away part 32 for the needle and, in the form illustrated, piercer. The tread members, supported by the spring tongues, have independent universal yielding and rocking movements to accommodate varying thicknesses of work. A compensating member 33 is provided for distributing the downward pressure of the presser bar over the tread members.
Patent GB-1359906-A (GB)
Title: Burner for incinerator
IPC: F23M11/04
Filed: 1972-03-01
Abstract: 1359906 Burner for incinerator AIR PREHEATER CO Inc 1 March 1972 [3 March 1971] 9574/72 Headings F4T and F4F A burner for an incinerator comprises a burner 24, fuel and air conduits 26 and 28 connected to it, means 30 for mixing the fuel and air, a pilot burner 32 for igniting the burner 24, and including a branch chamber (25), Fig. 2 (not shown), housing a thermocouple 52 subjected to the temperature of burning fuel and air in the pilot burner 32 and controlling a valve 58 in the fuel supply conduit to regulate fuel flow therein, and continuously bathed in cooling air from the air source 42. The valve 58 controls the flow of fluid in the conduit 26 to the burner 24 and a conduit 38 to a pilot burner 32 and is held open when there is a current flowing in the thermocouple 52, i.e. when it is hot, and is closed by a spring 62 when the pilot flame is extinguished and the thermocouple 52 cools. A manually operated valve 68 is used to shut off the fuel supply to the burner 24 when the pilot flame is extinguished. The pilot burner 32 used to ignite the burner 24 comprises an extension (35) in the burner 24 and has fuel and air conduits 38 and 36, mixing means 46 and igniting means 48. A relay 56 responsive to the thermocouple signals controls the valve 58 and a duct 64 with a regulator 66 connects the pilot burner 32 to the source 42 of air to continuously bathe the thermocouple 52 in a cooling air stream. In an incinerator, the burner 24 exhausts into a secondary combustion chamber 22 where combustion of exhaust gases from the output port 18 of the primary combustion chamber 12 is completed.
Patent GB-590298-A (GB)
Title: Improvements in and relating to bearing race extractors
IPC: B25B27/06
Filed: 1945-04-17
Abstract: 590,298. Bearing race removers. JACK & HEINTZ, Inc. April 17, 1945, No. 9615. Convention date, March 2, 1944. [Class 61 (iii)] A ball-bearing race-removing device consists of a cylinder 5 inside of which is slidably fitted a block 6 bored longitudinally to receive a rod 7. The rod 7 carries a cross-pin 8 which extends through the rod into an enlarged slot 9, the upper and lower limits of which determine the relative movement between the rod and the block 6. The cylinder 5 is provided at its upper end with a plug 10 which has a central opening to permit the rod 7 to extend through. The rod 7 has pivoted to it a hand lever having a cam bearing surface 15 which bears against the plug 10. Fitted about the cylinder 5 is a sleeve 16 provided with opposite openings to receive two hand pins 17 and 18 that extend through the sleeve 6 and through vertically elongated slots 19 of the cylinder 5 and are removably screwthreaded into the block 6. The block 6 is reduced in diameter near its bottom to form a shoulder 20 and is apertured to receive three or more balls 21. Confined between the plug 10 and the block 6 is a compression spring 23 forcing the block 6 downwards. A bracket 24 may be provided in order to clamp the device in an upright position when in use. For use, the hand pins 17 and 18 are lifted until they are stopped by the pin 8. This forces the balls into the cavities 22 in the rod 7 and allows the end of the block 6 to enter the race. If the hand pins are now lowered, the balls again are released and engage in the undercut cavity of the race. The rod 7 is now raised by means of the cam lever 15 and the race removed. To release the race from the device, the cam lever is lowered and the hand pins raised and the race falls away.
Patent GB-287937-A (GB)
Title: Improvements relating to electrodes for electron discharge devices and the like
IPC: H01J19/38
Filed: 1928-03-30
Abstract: 287,937. Westinghouse Lamp Co., (Assignees of Jones, H. W.). March 30, 1927, [Convention date]. Vacuum tubes.-Rectangular control grids are supported by a rigid frame and have members .arranged in a guideway in the frame so that expansion of the grid relatively to the frame is permitted and the correct spacing from the other electrodes maintained. A grid comprising a refractory wire 15 wound on spaced longitudinal supports 16, 17, or comprising stamped metal with rigid end members, is arranged on a framework comprising rigid parallel wires 2, 3 secured by straps 8 to a collar 7 clamped about are-entrant stem. The wires are welded together at 6 and spaced apart to form guideways 4, 5 by offset parts near the welds 6 and by wires 9 supporting insulating beads 14 for filament supports. After mounting the framework on the stem and the filament on the framework, the grid is slid over the framework. The support 17 lies in the guideway 4 and may be welded thereto at 18 or at 19 or at both 18 and 19, the support 16 lying freely in the guideway 5 and being guided therein when the transverse parts of the wire 15 expand on 'heating.
Patent GB-826393-A (GB)
Title: Improvements in or relating to knitting machines
IPC: D04B7/08
Filed: 1957-03-25
Abstract: 826,393. Knitting-machines. EBERL, F. March 25, 1957 [March 26, 1956], No. 9634/57. Class 74 (2). A single or parallel flat bed machine has sinkers 4 associated with the, or each, bed of the machine which are engaged by a cam 21 on the cam carriage for the, or each, bed so as to raise the sinkers and thereby increase the length of the draw by increasing the distance between the yarn-engaging surfaces 8 of the sinkers and the hooks of the needles when the latter are in their retracted position. The sinkers are slidable in a sinker bed on the forward edges of the needle bed and are each guided by their lower portion 5, which is attached to a spring to urge the sinker downwardly, and also by a rod 7 secured to the needle bed and which passes through a slot 6 in each sinker. The cam 21 engages beneath a rear projecting portion 9 of the sinkers to operate them. Each sinker has a fabricengaging hook with an offset tip 16 as described in Specification 826,894 to permit the hooks to engage the fabric as it is lowered, particularly when knitting rib fabric on a parallel bed machine. The sinker cams are either adjustable or one can be substituted for another to enable the stitch length to be varied. In a machine having forward and reverse stitch cams the sinker cam is moved to coincide with each needle cam on the forward and reverse movements of the carriage .